The SMART Li-NMC battery contains a controller circuit that allows using the Lithium batteries in Roomba robots that are originally designed for a very different battery type.

The heart of the batteries are Lithium Nickel Manganese Cobalt Oxide cells manufactured by GP. These cells offer the highest usable energy density combined with a longer cycle life at broad operating temperatures and unmatched safety features, best among all Li-ion batteries. Not surprisingly, they are widely used in Hybrid Electric Vehicles.